These slang words, when fully sounded out, mean "F-U-C-K Y-O-U"
Some people write, draw, or text this sentence to someone just because they are scared of fully just saying "fuck you."
And most adults, supervisors, or teachers wont notice it. They would this its just some funny slang for no reason or another.
Ay bee see dee ee eff jee aitch eye jay kay elle emm enn oh pee queue are ess tea you vee dubeu ex why zed. Now I know my ABC’s. Next time won’t you sing with me?